Global growth and stability of agricultural yield decrease with pollinator dependence
Human welfare depends on the amount and stability of agricultural production, as determined by crop yield and cultivated area. Yield increases asymptotically with the resources provided by farmers' inputs and environmentally sensitive ecosystem services. Declining yield growth with increased in...
| Otros Autores: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/download/articulo/2011Garibaldi.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 245 | 1 | 0 | |a Global growth and stability of agricultural yield decrease with pollinator dependence |
| 520 | |a Human welfare depends on the amount and stability of agricultural production, as determined by crop yield and cultivated area. Yield increases asymptotically with the resources provided by farmers' inputs and environmentally sensitive ecosystem services. Declining yield growth with increased inputs prompts conversion of more land to cultivation, but at the risk of eroding ecosystem services. To explore the interdependence of agricultural production and its stability on ecosystem services, we present and test a general graphical model, based on Jensen's inequality, of yield-resource relations and consider implications for land conversion. For the case of animal pollination as a resource influencing crop yield, this model predicts that incomplete and variable pollen delivery reduces yield mean and stability [inverse of variability] more for crops with greater dependence on pollinators. Data collected by the Food and Agriculture Organization of the United Nations during 1961-2008 support these predictions. Specifically, crops with greater pollinator dependence had lower mean and stability in relative yield and yield growth, despite global yield increases for most crops. Lower yield growth was compensated by increased land cultivation to enhance production of pollinator-dependent crops. Area stability also decreased with pollinator dependence, as it correlated positively with yield stability among crops. These results reveal that pollen limitation hinders yield growth of pollinator-dependent crops, decreasing temporal stability of global agricultural production, while promoting compensatory land conversion to agriculture. Although we examined crop pollination, our model applies to other ecosystem services for which the benefits to human welfare decelerate as the maximumis approached. | ||
| 653 | 0 | |a DIMINISHING RETURNS | |
| 653 | 0 | |a ENVIRONMENTAL DEGRADATION | |
| 653 | 0 | |a FOOD SECURITY | |
| 653 | 0 | |a GLOBAL POLLINATION CRISIS | |
| 653 | 0 | |a LAND USE CHANGE | |
| 653 | 0 | |a AGRICULTURAL LAND | |
| 653 | 0 | |a CORRELATIONAL STUDY | |
| 653 | 0 | |a CROP | |
| 653 | 0 | |a ECOSYSTEM | |
| 653 | 0 | |a PLANT GROWTH | |
| 653 | 0 | |a PLANT YIELD | |
| 653 | 0 | |a POLLINATOR | |
| 653 | 0 | |a STATISTICAL MODEL | |
| 653 | 0 | |a TILLAGE | |
| 653 | 0 | |a AGRICULTURE | |
| 653 | 0 | |a MODELS, BIOLOGICAL | |
| 653 | 0 | |a POLLINATION | |
| 653 | 0 | |a UNITED NATIONS | |
| 653 | 0 | |a ANIMALIA | |
| 700 | 1 | |9 31177 |a Garibaldi, Lucas Alejandro | |
| 700 | 1 | |9 45892 |a Aizen, Marcelo A. | |
| 700 | 1 | |9 69459 |a Klein, Alexandra M. | |
| 700 | 1 | |9 69460 |a Cunningham, S. A. | |
| 700 | 1 | |a Harder, L. D. |9 69461 | |
| 773 | |t Proceedings of the National Academy of Sciences of the United States of America |g Vol.108, no.14 (2011), p.5909-5914 | ||
| 856 | |u http://ri.agro.uba.ar/files/download/articulo/2011Garibaldi.pdf |i En internet |q application/pdf |f 2011Garibaldi |x MIGRADOS2018 | ||
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| 900 | |a ^tGlobal growth and stability of agricultural yield decrease with pollinator dependence | ||
| 900 | |a ^aGaribaldi^bL.A. | ||
| 900 | |a ^aAizen^bM.A. | ||
| 900 | |a ^aKlein^bA.M. | ||
| 900 | |a ^aCunningham^bS.A. | ||
| 900 | |a ^aHarder^bL.D. | ||
| 900 | |a ^aGaribaldi^bL. A. | ||
| 900 | |a ^aAizen^bM. A. | ||
| 900 | |a ^aKlein^bA. M. | ||
| 900 | |a ^aCunningham^bS. A. | ||
| 900 | |a ^aHarder^bL. D. | ||
| 900 | |a ^aGaribaldi, L.A.^tLaboratorio de Ecotono, Instituto de Investigaciones en Biodiversidad y Medioambiente, Universidad Nacional Del Comahue, 8400 Bariloche, Río Negro, Argentina | ||
| 900 | |a ^aAizen, M.A.^tDepartamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, 1417 Buenos Aires, Argentina | ||
| 900 | |a ^aKlein, A.M.^tInstitute of Ecology, Ecosystem Functions Section, Leuphana University of Lüneburg, 21335 Lüneburg, Germany | ||
| 900 | |a ^aCunningham, S.A.^tCommonwealth Scientific and Industrial Research Organization Ecosystem Sciences, Canberra, ACT 2601, Australia | ||
| 900 | |a ^aHarder, L.D.^tDepartment of Biological Sciences, University of Calgary, AB, T2N 1N4, Canada | ||
| 900 | |a ^tProceedings of the National Academy of Sciences of the United States of America^cProc. Natl. Acad. Sci. U. S. A. | ||
| 900 | |a en | ||
| 900 | |a 5909 | ||
| 900 | |a ^i | ||
| 900 | |a Vol. 108, no. 14 | ||
| 900 | |a 5914 | ||
| 900 | |a DIMINISHING RETURNS | ||
| 900 | |a ENVIRONMENTAL DEGRADATION | ||
| 900 | |a FOOD SECURITY | ||
| 900 | |a GLOBAL POLLINATION CRISIS | ||
| 900 | |a LAND USE CHANGE | ||
| 900 | |a AGRICULTURAL LAND | ||
| 900 | |a CORRELATIONAL STUDY | ||
| 900 | |a CROP | ||
| 900 | |a ECOSYSTEM | ||
| 900 | |a PLANT GROWTH | ||
| 900 | |a PLANT YIELD | ||
| 900 | |a POLLINATOR | ||
| 900 | |a STATISTICAL MODEL | ||
| 900 | |a TILLAGE | ||
| 900 | |a AGRICULTURE | ||
| 900 | |a MODELS, BIOLOGICAL | ||
| 900 | |a POLLINATION | ||
| 900 | |a UNITED NATIONS | ||
| 900 | |a ANIMALIA | ||
| 900 | |a Human welfare depends on the amount and stability of agricultural production, as determined by crop yield and cultivated area. Yield increases asymptotically with the resources provided by farmers' inputs and environmentally sensitive ecosystem services. Declining yield growth with increased inputs prompts conversion of more land to cultivation, but at the risk of eroding ecosystem services. To explore the interdependence of agricultural production and its stability on ecosystem services, we present and test a general graphical model, based on Jensen's inequality, of yield-resource relations and consider implications for land conversion. For the case of animal pollination as a resource influencing crop yield, this model predicts that incomplete and variable pollen delivery reduces yield mean and stability [inverse of variability] more for crops with greater dependence on pollinators. Data collected by the Food and Agriculture Organization of the United Nations during 1961-2008 support these predictions. Specifically, crops with greater pollinator dependence had lower mean and stability in relative yield and yield growth, despite global yield increases for most crops. Lower yield growth was compensated by increased land cultivation to enhance production of pollinator-dependent crops. Area stability also decreased with pollinator dependence, as it correlated positively with yield stability among crops. These results reveal that pollen limitation hinders yield growth of pollinator-dependent crops, decreasing temporal stability of global agricultural production, while promoting compensatory land conversion to agriculture. Although we examined crop pollination, our model applies to other ecosystem services for which the benefits to human welfare decelerate as the maximumis approached. | ||
| 900 | |a 2011 | ||
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